diff --git a/phpBB/assets/javascript/core.js b/phpBB/assets/javascript/core.js
index bd1925baf6..752dfa4ab2 100644
--- a/phpBB/assets/javascript/core.js
+++ b/phpBB/assets/javascript/core.js
@@ -1332,7 +1332,6 @@ phpbb.toggleDropdown = function() {
 				marginLeft: 0,
 				left: 0,
 				marginRight: 0,
-				right: 0,
 				maxWidth: (windowWidth - 4) + 'px'
 			});